package college.dao;

import java.util.Date;
import java.util.List;

import org.hibernate.LockMode;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.context.ApplicationContext;
import org.springframework.orm.hibernate3.support.HibernateDaoSupport;

/**
 * A data access object (DAO) providing persistence and search support for
 * Attendance entities. Transaction control of the save(), update() and delete()
 * operations can directly support Spring container-managed transactions or they
 * can be augmented to handle user-managed Spring transactions. Each of these
 * methods provides additional information for how to configure it for the
 * desired type of transaction control.
 * 
 * @see college.dao.Attendance
 * @author MyEclipse Persistence Tools
 */

public class AttendanceDAO extends HibernateDaoSupport {
	private static final Logger log = LoggerFactory
			.getLogger(AttendanceDAO.class);
	// property constants
	public static final String SUBJECT = "subject";
	public static final String FACULTY = "faculty";
	public static final String ATTENDANCE = "attendance";

	protected void initDao() {
		// do nothing
	}

	public void save(Attendance transientInstance) {
		log.debug("saving Attendance instance");
		try {
			getHibernateTemplate().save(transientInstance);
			log.debug("save successful");
		} catch (RuntimeException re) {
			log.error("save failed", re);
			
			throw re;
		}
	}

	public void delete(Attendance persistentInstance) {
		log.debug("deleting Attendance instance");
		try {
			getHibernateTemplate().delete(persistentInstance);
			log.debug("delete successful");
		} catch (RuntimeException re) {
			log.error("delete failed", re);
			throw re;
		}
	}

	public Attendance findById(college.dao.AttendanceId id) {
		log.debug("getting Attendance instance with id: " + id);
		try {
			Attendance instance = (Attendance) getHibernateTemplate().get(
					"college.dao.Attendance", id);
			return instance;
		} catch (RuntimeException re) {
			log.error("get failed", re);
			throw re;
		}
	}

	public List findByExample(Attendance instance) {
		log.debug("finding Attendance instance by example");
		try {
			List results = getHibernateTemplate().findByExample(instance);
			log.debug("find by example successful, result size: "
					+ results.size());
			return results;
		} catch (RuntimeException re) {
			log.error("find by example failed", re);
			throw re;
		}
	}

	public List findByProperty(String propertyName, Object value) {
		log.debug("finding Attendance instance with property: " + propertyName
				+ ", value: " + value);
		try {
			String queryString = "from Attendance as model where model."
					+ propertyName + "= ?";
			return getHibernateTemplate().find(queryString, value);
		} catch (RuntimeException re) {
			log.error("find by property name failed", re);
			throw re;
		}
	}
	
	public List findByDateHour(Date date, int hour) {
		log.debug("finding Attendance instance with property: date"  
				+ ", value: " + date);
		try {
			String queryString = "from Attendance as model where model.id.date=? and model.id.hour=?";
			return getHibernateTemplate().find(queryString, date,hour);
		} catch (RuntimeException re) {
			log.error("find by property name failed", re);
			throw re;
		}
	}

	public List findBySubject(Object subject) {
		return findByProperty(SUBJECT, subject);
	}

	public List findByFaculty(Object faculty) {
		return findByProperty(FACULTY, faculty);
	}

	public List findByAttendance(Object attendance) {
		return findByProperty(ATTENDANCE, attendance);
	}

	public List findAll() {
		log.debug("finding all Attendance instances");
		try {
			String queryString = "from Attendance";
			return getHibernateTemplate().find(queryString);
		} catch (RuntimeException re) {
			log.error("find all failed", re);
			throw re;
		}
	}

	public Attendance merge(Attendance detachedInstance) {
		log.debug("merging Attendance instance");
		try {
			Attendance result = (Attendance) getHibernateTemplate().merge(
					detachedInstance);
			log.debug("merge successful");
			return result;
		} catch (RuntimeException re) {
			log.error("merge failed", re);
			throw re;
		}
	}

	public void attachDirty(Attendance instance) {
		log.debug("attaching dirty Attendance instance");
		try {
			getHibernateTemplate().saveOrUpdate(instance);
			log.debug("attach successful");
		} catch (RuntimeException re) {
			log.error("attach failed", re);
			throw re;
		}
	}

	public void attachClean(Attendance instance) {
		log.debug("attaching clean Attendance instance");
		try {
			getHibernateTemplate().lock(instance, LockMode.NONE);
			log.debug("attach successful");
		} catch (RuntimeException re) {
			log.error("attach failed", re);
			throw re;
		}
	}

	public static AttendanceDAO getFromApplicationContext(ApplicationContext ctx) {
		return (AttendanceDAO) ctx.getBean("AttendanceDAO");
	}
}